.jstree-leaf.disabled a{
	position: relative;
}

.jstree-leaf.disabled a ins:before {
	position: absolute;
	height: 5px;
	width: 5px;
	left: 0;
	top: 0;
	background: red;
	z-index: 5;
	content: "";
	border-radius: 50%; 
}